Les adresses IP débutant par 172.5.171 sont fournies par AT&T Services, Inc., elles appartiennent au CIDR (Classless Inter-Domain Routing) 172.0.0.0/12, le bloc IP comprant les adresses de 172.0.0.0 à 172.15.255.255). Le numéro de système autonome (ASN) est 7018.
| ASN | 7018 |
| IP commençant par | 172.0.0.0 |
| IP se terminant par | 172.15.255.255 |
| Nom ASN | AT&T Services, Inc. |
| CDIR | 172.0.0.0/12 |
| IP numérique | |
| Registe | arin |
| Dernière mise à jour | 20/09/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | United States | - | Arlington | 32,7357 | -97,1081 | 2017-09-20 |
| MaxMind | US | États-Unis | - | Fort Worth | 32,7406 | -97,3802 | 2017-09-20 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 172.5.171.0 | 2886052608 | 0 |
| 172.5.171.1 | 2886052609 | 0 |
| 172.5.171.2 | 2886052610 | 0 |
| 172.5.171.3 | 2886052611 | 0 |
| 172.5.171.4 | 2886052612 | 0 |
| 172.5.171.5 | 2886052613 | 0 |
| 172.5.171.6 | 2886052614 | 0 |
| 172.5.171.7 | 2886052615 | 0 |
| 172.5.171.8 | 2886052616 | 0 |
| 172.5.171.9 | 2886052617 | 0 |
| 172.5.171.10 | 2886052618 | 0 |
| 172.5.171.11 | 2886052619 | 0 |
| 172.5.171.12 | 2886052620 | 0 |
| 172.5.171.13 | 2886052621 | 0 |
| 172.5.171.14 | 2886052622 | 0 |
| 172.5.171.15 | 2886052623 | 0 |
| 172.5.171.16 | 2886052624 | 0 |
| 172.5.171.17 | 2886052625 | 0 |
| 172.5.171.18 | 2886052626 | 0 |
| 172.5.171.19 | 2886052627 | 0 |
| 172.5.171.20 | 2886052628 | 0 |
| 172.5.171.21 | 2886052629 | 0 |
| 172.5.171.22 | 2886052630 | 0 |
| 172.5.171.23 | 2886052631 | 0 |
| 172.5.171.24 | 2886052632 | 0 |
| 172.5.171.25 | 2886052633 | 0 |
| 172.5.171.26 | 2886052634 | 0 |
| 172.5.171.27 | 2886052635 | 0 |
| 172.5.171.28 | 2886052636 | 0 |
| 172.5.171.29 | 2886052637 | 0 |
| 172.5.171.30 | 2886052638 | 0 |
| 172.5.171.31 | 2886052639 | 0 |
| 172.5.171.32 | 2886052640 | 0 |
| 172.5.171.33 | 2886052641 | 0 |
| 172.5.171.34 | 2886052642 | 0 |
| 172.5.171.35 | 2886052643 | 0 |
| 172.5.171.36 | 2886052644 | 0 |
| 172.5.171.37 | 2886052645 | 0 |
| 172.5.171.38 | 2886052646 | 0 |
| 172.5.171.39 | 2886052647 | 0 |
| 172.5.171.40 | 2886052648 | 0 |
| 172.5.171.41 | 2886052649 | 0 |
| 172.5.171.42 | 2886052650 | 0 |
| 172.5.171.43 | 2886052651 | 0 |
| 172.5.171.44 | 2886052652 | 0 |
| 172.5.171.45 | 2886052653 | 0 |
| 172.5.171.46 | 2886052654 | 0 |
| 172.5.171.47 | 2886052655 | 0 |
| 172.5.171.48 | 2886052656 | 0 |
| 172.5.171.49 | 2886052657 | 0 |
| 172.5.171.50 | 2886052658 | 0 |
| 172.5.171.51 | 2886052659 | 0 |
| 172.5.171.52 | 2886052660 | 0 |
| 172.5.171.53 | 2886052661 | 0 |
| 172.5.171.54 | 2886052662 | 0 |
| 172.5.171.55 | 2886052663 | 0 |
| 172.5.171.56 | 2886052664 | 0 |
| 172.5.171.57 | 2886052665 | 0 |
| 172.5.171.58 | 2886052666 | 0 |
| 172.5.171.59 | 2886052667 | 0 |
| 172.5.171.60 | 2886052668 | 0 |
| 172.5.171.61 | 2886052669 | 0 |
| 172.5.171.62 | 2886052670 | 0 |
| 172.5.171.63 | 2886052671 | 0 |
| 172.5.171.64 | 2886052672 | 0 |
| 172.5.171.65 | 2886052673 | 0 |
| 172.5.171.66 | 2886052674 | 0 |
| 172.5.171.67 | 2886052675 | 0 |
| 172.5.171.68 | 2886052676 | 0 |
| 172.5.171.69 | 2886052677 | 0 |
| 172.5.171.70 | 2886052678 | 0 |
| 172.5.171.71 | 2886052679 | 0 |
| 172.5.171.72 | 2886052680 | 0 |
| 172.5.171.73 | 2886052681 | 0 |
| 172.5.171.74 | 2886052682 | 0 |
| 172.5.171.75 | 2886052683 | 0 |
| 172.5.171.76 | 2886052684 | 0 |
| 172.5.171.77 | 2886052685 | 0 |
| 172.5.171.78 | 2886052686 | 0 |
| 172.5.171.79 | 2886052687 | 0 |
| 172.5.171.80 | 2886052688 | 0 |
| 172.5.171.81 | 2886052689 | 0 |
| 172.5.171.82 | 2886052690 | 0 |
| 172.5.171.83 | 2886052691 | 0 |
| 172.5.171.84 | 2886052692 | 0 |
| 172.5.171.85 | 2886052693 | 0 |